Cassette tape recorder and tape recorder-set-top box `` Sonata-201-stereo '' and `` Sonata-202-stereo ''.

Cassette tape recorders, stationary.The "Sonata-201-stereo" cassette recorder since the beginning of 1978 and the Sonata-202-stereo tape recorder since 1980 have been produced by the Velikie Luki software "Radiopribor". Both devices are developed on the basis of the LPM tape recorder "Spring-201-stereo". In addition to the GOST requirements for class 2 tape recorders, any tape recorder has a device for automatically turning off the electric motor at the end of the tape, a peak overload indicator, with light indication in recording mode, a switched noise-reducing dynamic filter, separate indication of the recording level for each of the channels, a meter counter tapes, ARUZ system. The main characteristics of any tape recorder. Magnetic tape A4203-3. Belt speed 4.76 cm / s. Knock coefficient ± 0.3%. The nominal output power in the "Sonata-201-stereo" tape recorder is 2x6 W. The frequency range of sound on the LV is 63 ... 12500 Hz. The relative level of interference in the Z-V channel is -44 dB. Reducing the level of interference at frequencies above 4 kHz and the operation of the WMP -8 dB. The harmonic coefficient in the Z-V channel on the LV is 4%. The dimensions of the tape recorder are 430x320x120 mm. Weight 7.5 kg. The price of models is 380 and 300 rubles. The Sonata-202-stereo set-top box tape recorder, in addition to the absence of a power amplifier, has fewer slide controls.